I think it would be good to let a crash dump handler open a device fileto get control. Before dumping core, the kernel checks for a crash dumphandler running with the same UID. If one is found, the dying processsleeps and the crash dump handler is asked to respond.

The crash dump handler could supply a core dump name or start adebugger to revive the process. Perhaps just leave the process sleepingand dial tech support on a modem. This could be useful. :-)